Prescriptions for scientific writing about jargon and the passive voice are based on principles of writing presumed to be universal. They do not take into account that language varies with rhetorical setting, that scientists report their research to peer scientists, and that simplification of scientific language is more often translation than synonymy. Jargon, i.e., scientific terminology, is essential for designating new entities for which the language has no name. It makes for economy and for the accuracy and precision required in scientific research. The passive voice is unavoidable because scientists focus on the subject of their research as objects. The proscription of the passive voice and scientific jargon is rooted in the expectation that scientists write so as to be understood by the general reader.